Machine Shop 2
 Lathe Operations - Project 5-1
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Lathe Operations - Project 5-1
Chunked Internal Thread Cutting: Draw Tube (12D)
Part # PSN5#1

Part Description: Draw Tube

Quantity Req.: 1

 Name _________________________

Date: ________________

PLEASE HAVE YOUR INSTRUCTOR INITIAL AND DATE THE GREY BOXES (*) AFTER THE REQUIRED OPERATIONS.
Click here to view the part specification. 
Step# Location  Description  Initials  Date
10 Student Use part PSN1-2 from previous section.
20 Lathe  Place part in a 4 jaw chuck with about 2 inches extending out of the chuck.
30 Lathe  Center part to within .002 using dial indicator.
40 Lathe Pilot drill for 1-1/8 drilled hole.
50 Lathe Drill 1-1/8 hole, 1.75 deep using a dog on the shank of the drill. Use cutting oil or coolant.
60 Lathe Drill 3/4 inch drill through.  Use cutting oil or coolant.
70 Lathe Set up to bore minor diameter of the thread.
80 Student Look up in the Machinery’s Handbook the specifications for the thread. Be ready to answer questions by the instructor.
90 Instructor Have the instructor check specifications for the internal thread. *  
100 Lathe Bore the hole for the thread.
110 Lathe Setup to recess the hole. Be ready to answer questions concerning R.P.M. and how you are going to measure the recess depth.
120 Instructor Have the instructor check setup. *  
130 Lathe Recess the part to specifications
140 Lathe Set up to internally thread the part. Be ready to answer questions concerning procedures for internal threading and spring cuts.
150 Bench Thread the part using a 5C collet as a gage
160 Lathe Turn the part and chamfer the 3/4 inch hole.
170 Bench Deburr and inspect.
180 Instructor Have your work graded by the instructor. *